99*99+199怎么算最简便
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 18:08:24
![99*99+199怎么算最简便](/uploads/image/z/134491-67-1.jpg?t=99%2A99%2B199%E6%80%8E%E4%B9%88%E7%AE%97%E6%9C%80%E7%AE%80%E4%BE%BF)
99*99+199怎么算最简便
99*99+199怎么算最简便
99*99+199怎么算最简便
=99*99+99+100
=99*(99+1)+100
=99*100+100
=9900+100
=10000
99*99+199=(100-1)^2+200-1=10000-200+1+200-1=10000
99*99+199
=99*99+99+100
=99*(99+1)+100
=99*100+100
=100*(99+1)
=100*100
=10000
99*99+99+100=99*(99+1)+100=9900+100=10000
=99*99+99+100
=99*(99+1)+100
=99*100+100
=100*(99+1)
=10000
99*99+199
=99*(100-1)+199
=9900-99+199
=9900+(99-199)
=9900+100
=10000
99*99+99+100=99*(99+1)+100=100*(99+1)=10000